common/src/main/java/org/opendaylight/transportpce/common/fixedflex/GridUtils.java

   1 /*
   2  * Copyright © 2020 Orange, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.transportpce.common.fixedflex;
  10
  11 import java.math.BigDecimal;
  12 import java.util.Arrays;
  13 import java.util.HashMap;
  14 import java.util.Map;
  15 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.optical.channel.types.rev200529.FrequencyGHz;
  16 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.optical.channel.types.rev200529.FrequencyTHz;
  17 import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev200529.available.freq.map.AvailFreqMaps;
  18 import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev200529.available.freq.map.AvailFreqMapsBuilder;
  19 import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev200529.available.freq.map.AvailFreqMapsKey;
  20 import org.opendaylight.yangtools.yang.common.Uint16;
  21
  22 /**
  23  * Util class for grid.
  24  *
  25  */
  26 public final class GridUtils {
  27
  28     private GridUtils() {
  29     }
  30
  31     public static Map<AvailFreqMapsKey, AvailFreqMaps> initFreqMaps4FixedGrid2Available() {
  32         byte[] byteArray = new byte[GridConstant.NB_OCTECTS];
  33         Arrays.fill(byteArray, (byte) GridConstant.AVAILABLE_SLOT_VALUE);
  34         Map<AvailFreqMapsKey, AvailFreqMaps> waveMap = new HashMap<>();
  35         AvailFreqMaps availFreqMaps = new AvailFreqMapsBuilder().setMapName(GridConstant.C_BAND)
  36                 .setFreqMapGranularity(new FrequencyGHz(BigDecimal.valueOf(GridConstant.GRANULARITY)))
  37                 .setStartEdgeFreq(new FrequencyTHz(BigDecimal.valueOf(GridConstant.START_EDGE_FREQUENCY)))
  38                 .setEffectiveBits(Uint16.valueOf(GridConstant.EFFECTIVE_BITS))
  39                 .setFreqMap(byteArray)
  40                 .build();
  41         waveMap.put(availFreqMaps.key(), availFreqMaps);
  42         return waveMap;
  43     }
  44
  45     /**
  46      * Compute the wavelength index from Spectrum assignment stop index.
  47      * Only for fix grid and device 1.2.1.
  48      * @param stopIndex int
  49      * @return the wavelength number.
  50      */
  51     public static long getWaveLengthIndexFromSpectrumAssigment(int stopIndex) {
  52         return (stopIndex + 1) / GridConstant.NB_SLOTS_100G;
  53     }
  54
  55     /**
  56      * Compute the frequency in TGz for the given index.
  57      * @param index int
  58      * @return the frequency in THz for the provided index.
  59      */
  60     public static BigDecimal getFrequencyFromIndex(int index) {
  61         int nvalue = index - 284;
  62         return BigDecimal.valueOf(GridConstant.CENTRAL_FREQUENCY + (nvalue * GridConstant.GRANULARITY / 1000));
  63     }
  64
  65 }